Home / 39,127.17-53,995.52-21,222.17

Finding the Fourth Proportional to 39,127.17, 53,995.52 and 21,222.17

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Solution

The fourth proportional to 39,127.17, 53,995.52 and 21,222.17 is: 29,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,127.17 : 53,995.52 = 21,222.17 : x
  2. Step 2: Convert to fraction form
    39,127.17/53,995.52 = 21,222.17/x
  3. Step 3: Cross multiply
    39,127.17x = 53,995.52 × 21,222.17
  4. Step 4: Simplify right side
    39,127.17x = 1,145,902,104.68
  5. Step 5: Solve for x
    x = 1,145,902,104.68/39,127.17
  6. Step 6: Final answer
    x = 29,286.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.